Select all and Unselect all options in the Swap page

Would it be possible to incorporate two checkboxes (for both incoming and outcoming coins) in the swap page so that we can automatically select all coins and unselect all coins?

Se my case here:


In the picture above I'd like to unselect all the 99 coins I have selected (so that I can match the 19 I am being offered) and to do that I have to go one by one an unmarked them, pretty annoying huh? :

Thanks,
Alex